Welcome to our shop! Features: - Support Forward/Reverse Rotation Control and Stop. - The speed controller is made with high quality circuit board which ensures a longer service life. - This simple and easy-to-use DC motor speed controller has an elegant appearance and stable performance. - Adopt PWM speed control, accurate and stable. - Well designed case can protect the controller board from damage as well as dissipate heat. Specification: - Supply voltage: DC 12-60V - Output current: 40A - Dimension: 60*90*99mm / 2.36*3.54*3.9in - Mounting size: 52*81mm / 2.05*3.19in Package list: - 1 * DC Motor Speed Controller 100% Satisfaction: Our customers are our top priority. If you find any product problems after receiving the goods, such as damage and incorrect quantity of goods, please contact the seller immediately. We try our best to provide you with satisfactory after-sales service.